ds og 135 geometric sequence ? : DS Archive
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 10 Dec 2016, 10:20

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

ds og 135 geometric sequence ?

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Manager
Joined: 05 Oct 2005
Posts: 200
Followers: 1

Kudos [?]: 7 [0], given: 0

ds og 135 geometric sequence ? [#permalink]

Show Tags

23 Nov 2005, 13:52
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:38) correct 0% (00:00) wrong based on 1 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

a good one :

if s is the infinite sequence S^1 ( first term)=9
S^2=99, S^3=999.....

S^k=10^k-1...

IS every term in S divisible by the prime number p?

1 p is greater than 2

2 AT least one term in the sequence is divisible by p

plz explain your work thanks
_________________

when there is a will there is a way

best regards

Manager
Joined: 05 Oct 2005
Posts: 200
Followers: 1

Kudos [?]: 7 [0], given: 0

[#permalink]

Show Tags

23 Nov 2005, 14:11
nakib77 wrote:
It should be B.

nope
_________________

when there is a will there is a way

best regards

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 142 [0], given: 0

Re: ds og 135 geometric sequence ? [#permalink]

Show Tags

23 Nov 2005, 14:28
My answer is E

(1) p is greater than 2 so p could be 3, 5, 7.....Insufficient
(2) p could be 11...so s^2 will be divisible by 11, but s^3 will not. Insufficient.

(1) + (2) still not sufficient based on above as p could be 3 and 11...
Director
Joined: 09 Jul 2005
Posts: 595
Followers: 2

Kudos [?]: 56 [0], given: 0

[#permalink]

Show Tags

23 Nov 2005, 15:26
E for me

(1) p=3 and p=5 then NS

(2) 11 divides 99 but it doesn't 999. 3 does for both. NS

(1) and (2). 11 divides 99 but it doesn't 999. 3 does for both. NS
Manager
Joined: 05 Oct 2005
Posts: 200
Followers: 1

Kudos [?]: 7 [0], given: 0

[#permalink]

Show Tags

25 Nov 2005, 15:45
OA IS E
THANKS
_________________

when there is a will there is a way

best regards

[#permalink] 25 Nov 2005, 15:45
Display posts from previous: Sort by

ds og 135 geometric sequence ?

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.